WO2007148327A3 - Hand-held device and method for detecting concealed weapons and hidden objects - Google Patents

Hand-held device and method for detecting concealed weapons and hidden objects Download PDF

Info

Publication number
WO2007148327A3
WO2007148327A3 PCT/IL2007/000736 IL2007000736W WO2007148327A3 WO 2007148327 A3 WO2007148327 A3 WO 2007148327A3 IL 2007000736 W IL2007000736 W IL 2007000736W WO 2007148327 A3 WO2007148327 A3 WO 2007148327A3
Authority
WO
WIPO (PCT)
Prior art keywords
detection device
voltage
target
stored
concealed object
Prior art date
Application number
PCT/IL2007/000736
Other languages
French (fr)
Other versions
WO2007148327A2 (en
Inventor
Boris Kapilevich
Moshe Einat
Original Assignee
Ariel University Res And Dev C
Boris Kapilevich
Moshe Einat
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ariel University Res And Dev C, Boris Kapilevich, Moshe Einat filed Critical Ariel University Res And Dev C
Priority to US12/304,892 priority Critical patent/US20090195435A1/en
Publication of WO2007148327A2 publication Critical patent/WO2007148327A2/en
Publication of WO2007148327A3 publication Critical patent/WO2007148327A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/005—Prospecting or detecting by optical means operating with millimetre waves, e.g. measuring the black losey radiation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/04—Systems determining presence of a target
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
    • G01S7/032—Constructional details for solid-state radar subsystems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
    • G01S7/411—Identification of targets based on measurements of radar reflectivity
    • G01S7/412—Identification of targets based on measurements of radar reflectivity based on a comparison between measured values and known or stored values

Abstract

The present invention is an inexpensive, hand-held, and easy to operate millimeter-wave detection device that employs a non-imaging sensor which radiates a pulse of millimeter waves of a certain amplitude and frequency towards a target located at a distance from the detection device. The sensor receives pulses of millimeter waves that are reflected from the target and generates a voltage waveform that is characteristic mainly of the target material, while other parameters such as distance to the target are known. The processor of the detection device measures both the peak voltage and the rate of increase of the voltage until it reaches the maximum. Using an algorithm stored in a software module, the deviation between the rate of the voltage rise and the peak voltage is compared with values of similar parameters for a number of test targets made of different materials that were previously collected and stored in a calibration table in the memory of the device. A concealed object, e.g. a weapon, is positively identified when the measured voltage rise is found to be similar to one of the stored voltage rises. The circuitry of the detection device generates a visual and/or audio output to a display device which is indicative to the operator as to whether a concealed object is present and, if a match is found with the data in the calibration table, the nature of the concealed object is also displayed. In addition to the basic mode of operation described, various other operation modes can be employed with the detection device of the invention.
PCT/IL2007/000736 2006-06-19 2007-06-18 Hand-held device and method for detecting concealed weapons and hidden objects WO2007148327A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/304,892 US20090195435A1 (en) 2006-06-19 2007-06-18 Hand-held device and method for detecting concealed weapons and hidden objects

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL176411A IL176411A0 (en) 2006-06-19 2006-06-19 Hand-held device and method for detecting concealed weapons and hidden objects
IL176411 2006-06-19

Publications (2)

Publication Number Publication Date
WO2007148327A2 WO2007148327A2 (en) 2007-12-27
WO2007148327A3 true WO2007148327A3 (en) 2008-02-07

Family

ID=38573473

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2007/000736 WO2007148327A2 (en) 2006-06-19 2007-06-18 Hand-held device and method for detecting concealed weapons and hidden objects

Country Status (3)

Country Link
US (1) US20090195435A1 (en)
IL (1) IL176411A0 (en)
WO (1) WO2007148327A2 (en)

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Also Published As

Publication number Publication date
WO2007148327A2 (en) 2007-12-27
US20090195435A1 (en) 2009-08-06
IL176411A0 (en) 2007-07-04

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